t ={ 1,4,3,2,5,7}
index = ''
function Sort(t)
 for i =1 ,table.getn(t)-1 do
   for	j= 1,table.getn(t)-1-i do
     if	(t[j]>t[j+1]) then
	    temp =t[j]
		t[j] =t[j+1]
		t[j+1] =temp


	 end
   end
 end
end
Sort(t)

for	i=1 ,table.getn(t) do
  index	 =index..t[i]
end

print(index)
